HUBBLE SPACE TELESCOPE
DAILY REPORT #1867
PERIOD COVERED: 0000Z (UTC) 04/29/97 - 0000Z (UTC) 04/30/97
Daily Status Report as of 120/0000Z
1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:
1.1 Completed Three Sets of STIS/CCD 7092 (CCD Dark Rate and Read Noise)
Observations were taken to measure CCD dark current and gather data
for making super darks. The observations were completed as planned, and no
anomalies were reported.
1.2 Completed Two Sets of NIC/3 7055 (NICMOS GRISM Validation)
The Near Infrared Camera #3 was used to make observations of the
objects P035-R and MWC922 in order to perform validation of the operations
of the three NICMOS grisms and supply of the initial level of calibration
for spectroscopic observations. The observations were completed as planned
and no problems were reported.
1.3 Completed Five Sets of WF/PC-2 7553 (Pure Parallel Archive Survey II)
WF/PC-2 parallel observations were obtained in the ultraviolet in
search for interesting objects. This program is designed to find
extragalactic sources with near ultraviolet excesses (3000 A0) outside the
galactic plane and far ultraviolet sources (1600 A0) in the galactic plane.
The procedure was executed as scheduled, and no anomalies were reported.
1.4 Completed Two Sets of NIC/1/2/3 7043 (NICMOS Focus Monitor)
The Near Infrared Cameras (Cameras One, Two and Three) were used to
make observations of NGC-3603 in order to make focus calibration and
monitoring measurements. This proposal is built to run NIC/1/2 focus
sweeps on a weekly basis, and NIC/3 focus sweeps twice a week during SMOV.
The observations were executed as scheduled, and no anomalies were noted.
1.5 Completed Two Sets of WF/PC-2 6909 (WF/PC-2 Cycle 6 Calibration:
Earth Flats)
The WF/PC-2 was used to make observations of the bright Earth to
obtain streak flats which are used to construct high quality flat fields
for the WF/PC-2 filter set. The observations were executed as scheduled,
and no anomalies were noted.
1.6 Completed NIC/2 7154 (NICMOS Coronographic Hole Monitor)
The Near Infrared Camera (Camera 2) was used to make observations of
object NGC-3606 in order to monitor the effects of coronagraphic hole. The
purpose of this proposal is to take lamp flats with camera 2 (and cameras 1
and 3 occasionally) to monitor the location of the coronographic spot. The
observations were completed as scheduled, and no anomalies were reported.
1.7 Completed FGS 6876 (Parallax of RR-Lyrae)
The FGSs were used to make astrometric observations of the variable
star RR-Lyrae. RR Lyrae is the prototype of a class of stars that provide
a fundamental stepping stone for the astronomical distance scale. Its
trigonometric parallax is presently known to be around 0.0042 +/- 0.0019
arcsec for a distance modulus of 6.86 +/- 0.6 mag. It is the only star of
this class within the parallax range of HST. The observations were
completed as planned, and no problems were reported.
1.8 Completed FOC/96 6891 (Imaging and Polarization Studies of Radio
Galaxies and Jets)
The Faint Object Camera (f/96) was used to make observations of
radio galaxy 3C346 to study optical emissions associated with its radio hot
spots. The observations were executed as scheduled, and no anomalies were
noted.
1.9 Completed FGS 6495 (The Mass of the Bright Giant HD173764)
The FGSs were used to make astrometric observations of bright,
spectrographic binary system, giant star HD173764. The binary system has a
832 day period. The objective is to determine the individual masses of the
G4 and B9 class pair. The observations were completed as scheduled, and no
anomalies were noted.
1.10 Completed NIC 1/2/3 7049 (NICMOS Absolute Photometry Test)
The Near Infrared Cameras (Cameras One, Two and Three) were used to
make observations of standard star P330E using each NICMOS camera at five
different wavelengths spanning the NICMOS wavelength range. Biases and an
internal flat calabration image were also taken. The observations were
completed as planned, and no problems were reported.
2.0 FLIGHT OPERATIONS SUMMARY:
2.1 Guide Star Acquisitions:
Scheduled Acquisitions : 8
Successful : 8
Scheduled Reacquisitions : 6
Successful : 6
2.2 FHST Updates:
Scheduled : 23
Successful : 23
2.3 Operations Notes:
There were no significant reported operational problems.
3.0 SIGNIFICANT FORTHCOMING EVENTS:
Continuation of normal science and SMOV operations.
/DMH